Makefile: defailt docker machine VM 4096M
Makefile: defailt docker machine VM 4096M

- Smoke tests now require that; possible to perform inline cleanup to
  reduce this requirement in future.

opentable/sous,opentable/sous,samsalisbury/sous,samsalisbury/sous,opentable/sous,opentable/sous,samsalisbury/sous,opentable/sous,samsalisbury/sous,samsalisbury/sous